Serveur Comment configurer multiinv avec bungeecord en 1.12.2

Bonjour, j'ai un serveur minecraft 1.12.2 qui est géré par buungeecord et les serveurs par mohist.

j'aurais besoin de configurer multiinv avec bungeecord en 1.12.2

multiinv:https://www.spigotmc.org/resources/multiinv.56659/
mais la version 3.3.1 est en 1.11 (sur spigot) et il n'y a pas d'autre version sur spigot
(sans MySQL) donc pas inventory bridge !!

logs :

multiinv:
[11:00:13 INFO]: Enabling MultiInv v3.3.9
[11:00:14 INFO]: [MultiInv] MC 1.3 or above found, enabling version 2 XP handling.
[11:00:14 INFO]: [MultiInv] MC 1.9 or above found, enabling offhand slot.

tuxTwolibs:

[11:09:50 INFO]: UUID of player Amadeo_youtube is ed7dfddf-46f1-4de8-a192-d975790b96c1
[11:09:50 ERROR]: Could not pass event PlayerLoginEvent to TuxTwoLib v1.11-b8
org.bukkit.event.EventException: null
at org.bukkit.plugin.EventExecutor.lambda$create$1(EventExecutor.java:63) ~[EventExecutor.class:35e7e53]
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:66) ~[RegisteredListener.class:35e7e53]
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:484) [SimplePluginManager.class:35e7e53]
at net.minecraft.server.management.PlayerList.allowUserToConnect(PlayerList.java:684) [pl.class:?]
at net.minecraft.server.network.NetHandlerLoginServer.func_147326_c(NetHandlerLoginServer.java:150) [pc.class:?]
at net.minecraft.server.network.NetHandlerLoginServer.func_73660_a(NetHandlerLoginServer.java:73) [pc.class:?]
at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:296) [gw.class:?]
at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:195) [oz.class:?]
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:927) [MinecraftServer.class:?]
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:468) [nz.class:?]
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:775) [MinecraftServer.class:?]
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:618) [MinecraftServer.class:?]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_241]
Caused by: java.lang.NullPointerException
at Tux2.TuxTwoLib.TuxTwoInventoryPlayer.<init>(TuxTwoInventoryPlayer.java:19) ~[?:?]
at Tux2.TuxTwoLib.TuxTwoListener.onPlayerLogin(TuxTwoListener.java:23) ~[?:?]
at com.destroystokyo.paper.event.executor.asm.generated.GeneratedEventExecutor92.execute(Unknown Source) ~[?:?]
at org.bukkit.plugin.EventExecutor.lambda$create$1(EventExecutor.java:61) ~[EventExecutor.class:35e7e53]
... 12 more
merci d'avance